# The Book of Ruby - http://www.sapphiresteel.com

# puts({|i| puts(i)}.class) #<= block has no class. This is an error!
puts({ 1 => 2 }.class) # <= Hash
puts({}.class) # <= Hash
puts('But what is this...?')
puts {}.class # <= ???
print {}.class # <= nil in Ruby 1.8; ??? in 1.9
puts("Now let's try with parentheses...")
print({}.class) # <= Hash
